A round pipe crimp is too shallow and slips apart
Round slip joints need an even crimp around the full pipe end. Shallow random dents will not give the fitting a solid mechanical bite.
Stop if
- Those shallow dents won't hold under system pressure. Use the 5-blade crimpers to make deep, uniform folds an inch and a half deep around the rim so the pipe slides home snug into the fitting.
Watch out
- Do not use a few shallow dents and expect the joint to hold under vibration.
Check
- Use the proper crimper for round pipe.
- Keep crimps even around the full circumference.
- Test fit before sending the piece up.
- Look for loose, wobbly, or ovalized ends.
- Fasten and seal after the overlap seats fully.
Steps
- Use the proper crimper for round pipe.
- Keep crimps even around the full circumference.
- Test fit before sending the piece up.
- Look for loose, wobbly, or ovalized ends.
- Fasten and seal after the overlap seats fully.
More in Round, Spiral & Oval Duct